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131884516 = 2232971129
BaseRepresentation
bin1111101110001…
…10010111100100
3100012011102112201
413313012113210
5232230301031
621030424244
73160666651
oct767062744
9305142481
10131884516
1168499875
1238202084
132142849a
1413730c28
15b8a1d61
hex7dc65e4

131884516 has 6 divisors (see below), whose sum is σ = 230797910. Its totient is φ = 65942256.

The previous prime is 131884499. The next prime is 131884517. The reversal of 131884516 is 615488131.

It can be written as a sum of positive squares in only one way, i.e., 127599616 + 4284900 = 11296^2 + 2070^2 .

It is not an unprimeable number, because it can be changed into a prime (131884517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16485561 + ... + 16485568.

Almost surely, 2131884516 is an apocalyptic number.

It is an amenable number.

131884516 is a deficient number, since it is larger than the sum of its proper divisors (98913394).

131884516 is a wasteful number, since it uses less digits than its factorization.

131884516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32971133 (or 32971131 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 131884516 is about 11484.0983973493. The cubic root of 131884516 is about 509.0158079499.

The spelling of 131884516 in words is "one hundred thirty-one million, eight hundred eighty-four thousand, five hundred sixteen".

Divisors: 1 2 4 32971129 65942258 131884516